Hmmm. The problem is, I don't think that Dawkins argues that the changes are deliberate, rather that they are part of a random drift. Also, he speaks in terms of changes over 100-40 years. That is hardly "quick", or even "quicker" than the 40-60 years that I claimed would be a minimum requirement for scientific alteration of human nature to work.
Personally, I think the changes are rather directional - and represent moral progress. However, that is a whole different issue.
Think how much the human genome has changed in the last 40-100 years to see how much more rapid cultural evolution can be. Culture is likely to continue to evolve much faster than DNA does - due to ethical concerns, and the whole "unmaintainable spaghetti code" business.
In this video, Julian Savulescu from the Uehiro centre for Practical Ethics argues that human beings are "Unfit for the future" - that radical technological advance, liberal democracy and human nature will combine to make the 21st century the century of global catastropes, perpetrated by terrorists and psychopaths, with tools such as engineered viruses. He goes on to argue that enhanced intelligence and a reduced urge to violence and defection in large commons problems could be achieved using science, and may be a way out for humanity.
Skip to 1:30 to avoid the tedious introduction
Genetically enhance humanity or face extinction - PART 1 from Ethics of the New Biosciences on Vimeo.
Genetically enhance humanity or face extinction - PART 2 from Ethics of the New Biosciences on Vimeo.
Well, I have already said something rather like this. Perhaps this really is a good idea, more important, even, than coding a friendly AI? AI timelines where super-smart AI doesn't get invented until 2060+ would leave enough room for human intelligence enhancement to happen and have an effect. When I collected some SIAI volunteers' opinions on this, most thought that there was a very significant chance that super-smart AI will arrive sooner than that, though.
A large portion of the video consists of pointing out the very strong scientific case that our behavior is a result of the way our brains are structured, and that this means that changes in our behavior are the result of changes in the way our brains are wired.